Hello Pierre,
> > Emdebian supports amd64, i386 and powerpc as --build.
>
> Why aren't all architectures supported by Debian supported?
Why would you want an ARM/MIPS/M68K build host if you can cross
compile for them?
Anyway, i believe all arches could be supported, but does not make
much sense to support some arches and as we lack hardware for those
arches and we lack human resources, we do not support them.
Regards
--
Héctor Orón